a alpha
b beta
g gamma
d delta
e epsilon
z zeta
ae eta
th theta
i iota
k kappa
l lambda
m mu
n nu
x Xi(Zi)
o omicron
p pi
r rho
s sigma
t tau
u upsilon
ph phi
ch chi
ps psi
o omega

TABLE OF SPARKING DISTANCES

In Air for Various Voltages between Needle Points

Volts Distance
Inches Centimeter
5,000 .225 .57
10,000 .470 1.19
15,000 .725 1.84
20,000 1.000 2.54
25,000 1.300 3.30
30,000 1.625 4.10
35,000 2.000 5.10
40,000 2.450 6.20
45,000 2.95 7.50
50,000 3.55 9.90
60,000 4.65 11.8
70,000 5.85 14.9
80,000 7.10 18.0
90,000 8.35 21.2
100,000 9.60 24.4
110,000 10.75 27.3
120,000 11.85 30.1
130,000 12.95 32.9
140,000 13.95 35.4
150,000 15.00 38.1

FEET PER POUND OF INSULATED MAGNET WIRE

No. of Single Double Single Double
B.& S. Cotton, Cotton, Silk, Silk, Enamel
Gauge 4-Mils 8-Mils 1-3/4-Mils 4-Mils
20 311 298 319 312 320
21 389 370 408 389 404
22 488 461 503 498 509
23 612 584 636 631 642
24 762 745 800 779 810
25 957 903 1,005 966 1,019
26 1,192 1,118 1,265 1,202 1,286
27 1,488 1,422 1,590 1,543 1,620
28 1,852 1,759 1,972 1,917 2,042
29 2,375 2,207 2,570 2,435 2,570
30 2,860 2,534 3,145 2,900 3,240
31 3,800 2,768 3,943 3,683 4,082
32 4,375 3,737 4,950 4,654 5,132
33 5,590 4,697 6,180 5,689 6,445
34 6,500 6,168 7,740 7,111 8,093
35 8,050 6,737 9,600 8,584 10,197
36 9,820 7,877 12,000 10,039 12,813
37 11,860 9,309 15,000 10,666 16,110
38 14,300 10,636 18,660 14,222 20,274
39 17,130 11,907 23,150 16,516 25,519
40 21,590 14,222 28,700 21,333 32,107

INTERNATIONAL MORSE CODE AND CONVENTIONAL SIGNALS

TO BE USED FOR ALL GENERAL PUBLIC SERVICE RADIO COMMUNICATION

  1. A dash is equal to three dots.
  2. The space between parts of the same letter is equal to one dot.
  3. The space between two letters is equal to three dots.
  4. The space between two words is equal to five dots.

[Note: period denotes Morse dot, hyphen denotes Morse dash]